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Message-ID: <201601151013.fe1TJ3v5%fengguang.wu@intel.com>
Date: Fri, 15 Jan 2016 10:58:59 +0800
From: kbuild test robot <lkp@...el.com>
To: Chen Feng <puck.chen@...ilicon.com>
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Subject: Re: [PATCH] staging: ion: make the pte default none PTE_RDONLY
Hi Chen,
[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.4 next-20160114]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
url: https://github.com/0day-ci/linux/commits/Chen-Feng/staging-ion-make-the-pte-default-none-PTE_RDONLY/20160115-104450
config: x86_64-randconfig-x013-01140842 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/staging/android/ion/ion.c: In function 'ion_mmap':
>> drivers/staging/android/ion/ion.c:1030:34: error: incompatible type for argument 1 of 'pte_mkdirty'
vma->vm_page_prot = pte_mkdirty(vma->vm_page_prot);
^
In file included from include/linux/mm.h:55:0,
from include/linux/memblock.h:18,
from drivers/staging/android/ion/ion.c:26:
arch/x86/include/asm/pgtable.h:218:21: note: expected 'pte_t {aka struct <anonymous>}' but argument is of type 'pgprot_t {aka struct pgprot}'
static inline pte_t pte_mkdirty(pte_t pte)
^
vim +/pte_mkdirty +1030 drivers/staging/android/ion/ion.c
1024 }
1025
1026 if (!(buffer->flags & ION_FLAG_CACHED))
1027 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
1028
1029 /*Default writeable*/
> 1030 vma->vm_page_prot = pte_mkdirty(vma->vm_page_prot);
1031
1032 mutex_lock(&buffer->lock);
1033 /* now map it to userspace */
---
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Download attachment ".config.gz" of type "application/octet-stream" (28435 bytes)
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